You have a typical Ragdoll kitten, who wants to play. Of course if it was me, I would have pick the kitten up, give it some kisses, then distract it with another toy. . Another thing you may try is to put your hand between your feet and the kitten as the kitten comes in for the attack with a very firm no. The kitten will get the message that she will not be able to attack feet.

I am confused about the age difference between the kittens, one or two months ???? Do they play together?